Created by the sun, the protective bubble of the heliosphere shields our solar system from harmful radiation. A new mission ...

Need a refresher about 3I/ATLAS? Here's everything to know about the interstellar object, including when the latest observations will be made.

NASA is set to launch three spacecrafts Tuesday with the goal of unlocking the mysteries of solar weather at the edge of our ...

The spacecraft will map the boundaries of the heliosphere, study how Earth’s outer atmosphere reacts to solar activity and ...

London: From tentative evidence of habitable planets to the eyebrow-raising suggestion an interstellar comet might not be what it seems, the possibility of life beyond our solar system has long ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

SpaceX is preparing to launch three spacecraft on a first-of-its-kind mission to study the sun's influence throughout the solar system, from Earth's atmosphere to the edge of interstellar space. A ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

Daniel W.E. Green at the Central Bureau for Astronomical Telegrams, suggests that comet SWAN will hover near magnitude of +6, ...

Astronomers have been racing to get a better look at 3I/ATLAS, a mysterious object screaming into our solar system from far beyond. Now, as the BBC reports, new observations by the Gemini South ...